Function metro_m0::i2c_master

pub fn i2c_master<F: Into<Hertz>>(
    clocks: &mut GenericClockController, 
    bus_speed: F, 
    sercom3: SERCOM3, 
    pm: &mut PM, 
    sda: Pa22<Input<Floating>>, 
    scl: Pa23<Input<Floating>>, 
    port: &mut Port
) -> I2CMaster3

Convenience for setting up the labelled SDA, SCL pins to operate as an I2C master running at the specified frequency.